ModMii problem

Hi.
Today I installed via Letterbomb HBC (HBC without Bootmii only if I should install them if so as ISO or boot2?). I have a question I would like to upload softmoda using ModMii. I do not know what to do when he asks me "Would you like to download active iso" what to choose "No" or "Yes". I remember once I had uploaded something on the Wii (HBC+Backup Launcher something like that) so what do I tick?
The second question concerns the "Explolit" whether I need it since I already have HBC installed, or is it enough that inclusion "MMM" by HBC and I go to the next point?
Please help me guys ;D

you probably don't need them since you were already on 4.3....you should have them already

however since it is possible to have 4.3 and not have IOS58: check which IOS your HBC is running on (go into HBC, then push home...it should be in the upper right corner IIRC), if it's not on IOS 58, install that, then reinstall HBC....

you don't need an exploit since you already have HBC. just pick one to get by that screen...when you run through the mod guide, just skip the first step....